Tractor or truck wheel



May l 1923.

L. LOOK TRACTOR OR TRUCK. WHEEL Filed April 17 `1922 2 Sheets-Sheet l,QH/s ook JLLM/ May l, 1923.'

L.. LOOK TRACTOR OR TRUCK WHEEL Filed April 1?,V

2 Sheets-Sheet 2 y Pate-tiltedv May 1, 19213..

, yiirIir E1n siret ss YA11,453,685 Y LOUIS Loenen enrcAGO, ILLINOIS:

,Tia-ACTOR `on TRUCK WIEEEL.,A Y

Application fiid Aprii 17, laca serial NQ. 554,062.

To all lwhom it may concern:

Be it known thatv I, Louis LOOK, a citizen of l.the United States,`residing lat Chicago, in the countyof Cook and (State of Illinois, haveinvented certain new and useful Improvements in fa. Tractor or .TruckllVlieel,v of which the'following is a description.`

My invention relates to an'iinprovement in a tractor or truck wheel, andespeciallyto lsuch wheels adapted. for use Von road building machineryor on vehicles that are likely to be transported over paved roads. One othe. objects of my in ventionjis to ,provide such a wheel wherein the'tractive .lugs may be Withdrawn at will `so as not to project radiallybeyond the rim periphery and thus will not mar or damage thesurfaced'roads whenrthe wheel is moved thereover. other object ofInyinvention is to provide a `wheel f Vthe kind described wherein 'thelugs may be removed singly if so desired without-the necessity ofdismantling the entire wheel or all the lugs. Another object of myinvention is to provide a wheel of the v kind described which willoperate etliciently Vwith a full complement of lugs or `with one ormoreof the sets of lugs removed. An-

Y other object of my .invention is to provide means tovadjustablylimitthe radial movement of the lugs at will.I The invention has 4amongits other objects the production of a device of the kindk describedwhich is simple, ciriv"enient7 compact, durable, reliable, elficient andsatisfactory. for use wherever foiid applicable. Many other objects andadif'a-ntages of the construction herein Ashown andde'scribed will beobvious to those skilled in the vart from the disclosure herein given.

To this end myinvention consists in the.

novel construction, arrangement and,v combination of parts herein-shownvand described, and more particularly pointed out in the claims.

In the dra-wings, wherein like referencel 'characters indicate like orcorresponding parts, v l

Fig. 1 is'atop plan vievY showing my invention s applied to'thedriyingwheels of v a vehicle; .l 1 y Eig. 2 is -a side elevation thereof hFig'Q-S a radial sectin through'one of tiiejwiels'; i i

,afi'aclial section of a modified 'frm 6i wheel-"arid dfivepheeirg Inthe drawings, wherein Ifhaveillustratedl the preferred embodiments oflmy invention, l indicates the Vframev workof `a inotorvehicle and 2the''driving wheelsyforf supportingpthe vehicle, and 'propelling thesame. 3 indicates the supportiii'gor stationjf l.

f. ary axle extending at'eachend through "a stationary sleeve whichprojects axially in` to the wheels2. .The wlieels2 may beof any"ypreferred size, shapeandmaterial,` and in the form shown the rimisconnected to a central hiib 5-by spokes?. Any' manner of .i

drive means may be" employed for rotating the wheel upon the stationaryshaft, vas for instance, a sprocket wheel 6, secured tothe tures 8therefor at spaced points aboutthe circumference 4of the wheel. Intoeachof the lhub 5 may be driven by Ia ychain orV the like apertures 8there is adaptedfto be positioned a slidable pin or lug9 ofa'ny shape,size orf,

material so that when thepin ris, moved outwardly beyond the periphery:of. the rim itv may engage the `Qjroui'id. land so `afford traction.. If 1` y In order'to: provide alargerbearing surface for thepin:9,oartsl0are arrangedat s Y eachset of apertures, these parts 10.adapted to be secured to 4the inner surface of the rim by screws or.bolts 111, or. suitable or equivalent means.l It is tovr be' understoodthat these parts lOmay be formed integrally with the innerends of theypins of eachset and to lbe cletachably'secured thereto bynuts .1S-Orvinafter described.

Between the plate 12 positioned one or more springs 15,' as shown,tending to `yieldabl-y.inove the setsy of; pins or lugsfinwardly of theperipheralfsurface of the rim. A guide pin 17- may be arrangedV -oii'lthe plate 12de extend withinthe-spring, l 115.1@de -euppedscrew 16 maybe positioned.

the rimif sodesired. plate or carrier l2- ,is adapted to be positionedtransversely of tbepla'te 'l2 for a purpose which will beheref ienduit-.nm tia-.fais f at the other end of the spring so as to beremovable from the exterior surface of the rim wheel to remove thesprings. Thus there are a series of units each comprising pins, acarrier, springs therebetween and a ro-lle'r, anv unit of the seriesbeing individually remcivable from the rim, as will be hereinafterdescribed.

In order to 'prevent accidental withdrawal ot the lsets of pins, thereis arranged a concentric disk 18 secured to the stationary sleeve 4e byany suitable means, as for 1nstance, a screw 19. In this manner all ofthe bearing rollers 14 will ride on the periphery edge ot the disk 18.

In order to remove one of the sets ot' pins for the purpose of renewal,inspection or the like, the disk 18 is provided with a peripheral recessor opening 2O therein. This opening is closed by a movable memher 21,which when in the position shown 1n F ig. 2, has its outer edge flushwith the circumferential surface of the dislr 18. The member 21 isremovably held in place by means 22. Thus to remove any of the unit setof, pins, the insert 21 is first removed to uncover the recess 20 andthe wheel 2 is partially rotated until the opening 2O is in radialalignment with the roller 14: ot the particular set of pins desired tobe removed. The springs will move the pins with their carrier and rollerradially inwardly into the opening sov that they may be easily removedas a unit.

In order to operatively move the pins radially outwardly through theyrim of the wheels to project therebeyond and engage the ground. a cammember 23 is pivoted to the disk 18 adjacent the bottom side thereof. asat 24. the other` end of the cam 23 pivotallyconnected, as at 25, to theend ot a link 27.y The other end 2G oi the link 27 is pivotallyconnected to a lever 28 iXed to a shaft 29, extending from one wheel tothe other. Thus, whenever the shaft 29 is rocked, the cam 23 will bemoved so that as the rollers 14 are successively engaged thereby, thesets of pins will be slidably moved through their openings in the rimradially outwardly thereof, as shown in, Figs; 2 and 6. i

A lever 30..rigidly connected to the shaft 29 at one end, is pivotallyconnected at its other end to a link 30, which in turn is pivotallyconnected intermediate the ends o f an operating lever 31 pivoted to astationary part of the frame. rIhe operating lever 31 carries a springheld pin 33.0 erable over a series of detents formed in a segment 32. sothat the cam 23 may be adjustably held at various positions Yso as toadjustably limit the radial movement of the pms 9 from between theiroutermost position, shown in dotted lines (Fig. 1 and 6). to thatposition shown in full lines, where- 4means in various positions to inthey do not project beyond the peripheral surface of the rim.

In the modification shownin Fig. 1, the drive for the wheel is of aslightly ditferent type, and 6 indicates the driven shaft secured to thehub 5 of the wheel 2.

hence I do not wish to be understood as Y.

limiting myself to the exact torni, const-ruction, arrangement andcombination 'of parts herein shown and described,l or uses mentioned. i

What I claim asnew and desire to secure by Letters Patent is:

1. In combination with a vehicle. supporting wheels therefor 'tree ofperiperal projectiors, lugs slidably carried by said wheels. mea-ns forengaging the inner ends ot said lugs to limit their movement in onedirection. cam means cooperable with said lugs. manually operable meansfor operatlng said cam means to ractuate said lugs in succession toproject beyond said periphery,` and means for lockinp` saidlast-mentioned.

adjustably limit the movement of the luc-s.

2. In combination with a vehicle. ahpair'otl supporting wheels. aVseries oft pins slidable radially through the rim wall o'fsaid wheels.`

a stationary disc operatively engageable with the pins to prevent theiraccidental withdrawal from the rim .walha cam carried on said disc andoperatively.engageable vwith said pins in succession to actuate themradially through said wheelrim. and means for detachably locking saidcam to adjust ably limit the outward radial movement'oi said pins. l

3. In combination with a vehicle. a pair of supporting wheels, a seriesvof pins slidahle radially through the rim wallet' said wheels, astationary concentric disc opera` tively engagcable with the pinsnrevent their accidental withdrawal from 'the rim wall and having aradialrecess in its pe riphery, an insert tting into said recess flushwith the disc periphery, means for removably holding said insert inplace whereby it may be removed to permit one oi"- said pms to bewithdrawn radially inwardly from the rim, a cam carried on said disc andoperatively engageable with said pins in successionl to actuate themradially through said Y said cam to adjustably limit the outward radialmovement of' said pins.

4. In combination with a v ehicle, a pair of supporting wheels free ofprojections onv the rim periphery, a series of pins slidable radiallythrough the rim wall of said wheels, springs for normally maintainingsaid pins inwardly of the rim periphery, a stationary concentric discoperatively vengageable with the pins to prevent ltheir accidentalwithdrawal from the rim wall and having 4a 'radial recess in itsperiphery, an insert fitto permit one of said pins to be withdrawn` 1radially inwardly from the rim and a cam carried on said disc andoperativelyr engageable with said pins in successionv to actuate themradially through said wheel rim, and means for detachably locking saidcam to adjustably limit the outward radial movement of said pins.

5. In combination with a vehicle, a pair of supporting wheels, a seriesof sets ofradial pins spaced circumferentially of the rim of saidwheels, each of said set of pins comprising a plurality of pins, acarrier there for and a spring between said rim and cariier to yieldablymaintain said pins linwardly of the rim periphery, a concentricstationary disc operably engageable with said carriers to prevent theaccidental withdrawal of the pins from the rim, a cam on said stationarydisc and operably engages able with said carriers successively, linlrsconnected to one end of said cam, a rock.

shaft connected to said links, and an operatfing lever connected to saidshaft wherebyv said cam may be actuated to actuate said pins insuccession.

v6. In combination with a vehicle, a pair of supporting wheels, a seriesof sets of radial pins spaced circumferentially of the rimof saidwheels, each of said set of pins comprising a plurality of pins,a'carrier therefor, and a spring between said rim and carrier toyieldably maintain said pins inwardly of the rim periphery, a concentricstationary disc operahly engageable with said carriers to prevent theaccidenal withdrawal of the pins from the rim, a cam on said stationarydisc and operably engageable with said carriers successively, and meansfor adjusting saidcam to actuatesaid pins in" succession and adjustablyvary vthe limit of radial movement of said pins.

7. In combination with a vehicle, a pair of supporting wheels, a seriesof sets of radial pins spaced circiimferentially of the rim of saidwheels, each of said .set ofpins coinpris-` l ing a plurality of pins, acarrier therefor, a

bearing roller carriedvby said carrier, and a`v 4 spi-ing between saidrim and carrier .toyield-v ably maintain said pins inwardly of therimperiphery, aconcentric stationary disc erigageable vwith all ofsaidrollers tojprevent i the accidental withdrawal of the pins from the rim,la `cain pivoted on said stationary vdisc and engageable with saidrollers ,suc.

cessively, andmeans for Iadjusting said cam to actuatesaid'pinsand-"adjustably vary their limit of radial movement.

8.v In combination Vwith a vehicle, .av pair i of V supporting wheels, aseries ofl sets ofpiiis*v spaced circumferentially of and slidable ra'-diallyl of the rim of said wheels, each of said sets comprisingy aplurality of pinsanda carrier therefor, and means for normally' -1yieldably maintaining` said sets inwardly of the rim periphery,comprising a stationary disc operably engageable" with said carriers toprevent the accidental withdrawal of the pins, land having a recess: inits peripheral ledge and meansfornormally closingsaid recess, wherebyA'said last mentioned means may be operated to open said recess so thatthe set opposite thereto may be withdrawnv` I from the rim thereinto asa uniti:

9. In lcombination with a vehicle, a pairv of supporting wheels, aseries of pins'. sli'dableA radially through the rim wall of saidwheels, a stationarydisc operatively engageable with the pins to preventtheir accidental with- `drawal from the rim wall, and a cam carried onsaid disc and voperatively engage'able withsaid pins in succession to actuate them f g radially through said wheel rim.I

10; In combination with a vehicle, 'ai-pair* of supporting wheels, aseries of pins slidable radially through v the rim wall of saidstationary concentric disc vnor'f` f I mally engageable with 1 the "pinsto prevent.

wheels, a

their i-accidental withdrawal froml ltherim wall and Vhaving aI radialrecess in` its periphery, an insert fitting intosaid recess flushwiththe periphery of thejdisc,'.means fory removablyr holding saidinsertinplace,

whereby it may be removed to permit one of said pins tobe withdrawnradially inwardly.

from therim, and means for'actuating said I vpins in succession to movethem through 'said wheel rim.

In testimonyl whereofMI-have hereunto signed my name inthe presence oftwo subscribing witnesses.

fitnesseszy ROY W. IIILL, RUTH M. EPHRAiM.'

Louisy Loon. l

